Test Catalog

Interpretive Handbook

Test 88760 :
Drug Screen, Prescription/OTC, Urine

Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

This test looks for a broad spectrum of prescription and over-the-counter (OTC) drugs. It is designed to detect drugs that have toxic effects, as well as known antidotes or active therapies that a clinician can initiate to treat the toxic effect. The test is intended to help physicians manage an apparent overdose or intoxicated patient, or to determine if a specific set of symptoms might be due to the presence of drugs. This test is not appropriate for drugs of abuse or illicit drug testing, including benzodiazepines, opioids, barbiturates, cocaine, amphetamine type stimulants.

 

Drugs of toxic significance that are not detected by this test are: digoxin, lithium, and many drugs of abuse or illicit drugs, some benzodiazepines, and some opioids.

 

See Prescription and Over-the-Counter (OTC) Drug Screens in Special Instructions for detection limits for drugs detected in this test.

Useful For Suggests clinical disorders or settings where the test may be helpful

The qualitative detection and identification of prescription or over-the-counter drugs frequently found in drug overdose or used with a suicidal intent

 

This test is designed to provide, when possible, the identification of all drugs present.

Interpretation Provides information to assist in interpretation of the test results

The drugs that can be detected by this test are listed in Prescription and Over-the-Counter (OTC) Drug Screens in Special Instructions.

 

Drugs of toxic significance that are not detected by this test include digoxin, lithium, many drugs of abuse/illicit drugs, some benzodiazepines, and some opiates. For these drugs, see Mayo Medical Laboratories' drug abuse surveys or drug screens or individual tests.

 

A detailed discussion of each drug detected is beyond the scope of this text. Each report will indicate the drugs identified. If a clinical interpretation is required, request a Drug/Toxicology Lab consult (Mayo Clinic patients) or contact Mayo Laboratory Inquiry (Mayo Medical Laboratories clients).

Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

Not intended for use in employment-related testing.

 

Not intended for therapeutic compliance testing.

 

This test is not appropriate for drugs of abuse or illicit drug testing, including benzodiazepines, opioids, barbiturates, cocaine, amphetamine type stimulants.

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Drugs detected are presumptive. Additional testing may be required to confirm the presence of any drugs detected.

Clinical References Provides recommendations for further in-depth reading of a clinical nature

1. Langman LJ, Bechtel L, Holstege CP: Clinical toxicology. In Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. Fifth edition. Edited by CA Burtis, ER Ashwood, DE Bruns. St. Louis, MO. Elsevier Saunders, 2012 pp 1109-1188 2. Disposition of Toxic Drugs and Chemicals in Man. 10th edition. Edited by RC Baselty. South Beach CA, Biomedical Publications, 2014